FIS = flight information service, this is sector/area with assigned radio frequency. It is common for VFR flights to use this for communication outside your ATZ or CTR, at least here in Poland.
I have my navigation database updated, I tried to check all FiF options (there are a lot of them

and still could't find what I'm looking for
It would be great to have FIS borders displayed on the FiF map (optionally) like other zones (TMA, TRA, CTR, ATZ,...) with assignable frequences.
So once again, is the feature provided in FiF?
Mariusz